Reputation: 4923
I am trying to get hold on Clang. So, I would like to view the AST generated by Clang after parsing the given program. Is it possible to dump AST in .dot or .viz format? Is there any tool out there?
Upvotes: 60
Views: 57669
Reputation: 377
I am using following:
clang my_file.h -I. -Xclang -ast-dump -fsyntax-only -fno-color-diagnostics -Wno-visibility
IMHO This is more suitable for machine parsing.
Upvotes: 3
Reputation: 339
For viewing the AST
clang-check -ast-dump filename.c
For to view the specific functions in a program
clang-check -ast-dump -ast-dump-filter=function_name filename.c
Upvotes: 6
Reputation: 100200
The method with -cc1
invocation will have problem with includes and recognizing C++.
For full-featured parsing, use:
clang -Xclang -ast-dump file.cpp
Upvotes: 74
Reputation: 1356
Clang supports showing the AST with Graphviz's dotty
-- you can grab the temporary .dot file generated (name is printed out) to get the graph source.
clang -cc1 -ast-view your_file.c
You can also print to the command line with:
clang -cc1 -ast-dump your_file.c
or:
clang -cc1 -ast-print your_file.c
or in 3.3:
clang -cc1 -ast-dump-xml your_file.c
but this was removed later as pointed by Lukas Kubanek in the comment.
Upvotes: 61